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灭幼脲Ⅲ号(简称“灭Ⅲ”,下同)是我国1984年始进入批量生产的新农药,具有特异杀虫功能。其杀虫方式主要是抑制昆虫体壁几丁质的合成,干扰发育进程,阻止正常蜕皮最终死亡。其特点是有选择性,对咬食植物的昆虫特别是鳞翅目幼虫有很强的杀除力,用量较绝大多数常规农药少,对高等动物以及环境十分安全。国内近年应用“灭Ⅲ”对油松毛虫、赤松毛虫,美国白蛾、
Chlorbenzuron III (referred to as “off Ⅲ”, the same below) is the beginning of 1984 China’s mass production of new pesticides, with specific insecticidal function. The insecticidal mode is mainly to inhibit the synthesis of insect body wall chitin, interfere with the development process, prevent the final molting final death. It is characterized by selectivity, insects on plant bites, especially Lepidoptera larvae have a strong killing force, the dosage is less than most conventional pesticides, the higher animals and the environment is very safe. In recent years, the application of “off Ⅲ” on the pine caterpillar, red caterpillar, white moth,